package com.myblog.common.exception;

import com.myblog.common.lang.Result;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.ShiroException;
import org.springframework.http.HttpStatus;
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.io.IOException;

/**
 * 定义全局异常处理 ，服务端错误
 */
@Slf4j
@RestControllerAdvice  // 异步处理
public class GlobalExceptionHandler {

    /**
     * 捕捉shiro的异常
     * @param e
     * @return
     */
    @ResponseStatus(HttpStatus.UNAUTHORIZED)
    @ExceptionHandler(ShiroException.class)
    public Result handler(ShiroException e){

        //登录不成功
        return Result.fail(401,e.getMessage(),null);
    }
    /**
     * 处理Assert的异常
     */
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    @ExceptionHandler(value = IllegalArgumentException.class)
    public Result handler(IllegalArgumentException e)throws IOException{
        log.error("Assert异常:------------->{}",e.getMessage());
        return Result.fail(e.getMessage());
    }
    /**
     * 处理Assert的异常
     */
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public Result handler(MethodArgumentNotValidException e)throws IOException{
        log.error("实体校验异常:------------->{}",e.getMessage());
        BindingResult bindingResult = e.getBindingResult();
        ObjectError objectError = bindingResult.getAllErrors().stream().findFirst().get();
        return Result.fail(objectError.getDefaultMessage());
    }
    @ResponseStatus(HttpStatus.BAD_REQUEST)
    @ExceptionHandler(value = RuntimeException.class)
    public Result handler(RuntimeException e)throws  IOException{
        log.error("运行时异常：---->",e);

        return Result.fail(e.getMessage());
    }
}
